Ejemplo n.º 1
0
inline
void
op_sort::apply_noalias(Mat<eT>& out, const Mat<eT>& X, const uword sort_type, const uword dim)
  {
  arma_extra_debug_sigprint();
  
  if( (X.n_rows * X.n_cols) <= 1 )
    {
    out = X;
    return;
    }
  
  
  if(dim == 0)  // sort the contents of each column
    {
    arma_extra_debug_print("op_sort::apply(), dim = 0");
    
    out = X;
    
    const uword n_rows = out.n_rows;
    const uword n_cols = out.n_cols;
      
    for(uword col=0; col < n_cols; ++col)
      {
      op_sort::direct_sort( out.colptr(col), n_rows, sort_type );
      }
    }
  else
  if(dim == 1)  // sort the contents of each row
    {
    if(X.n_rows == 1)  // a row vector
      {
      arma_extra_debug_print("op_sort::apply(), dim = 1, vector specific");
      
      out = X;
      op_sort::direct_sort(out.memptr(), out.n_elem, sort_type);
      }
    else  // not a row vector
      {
      arma_extra_debug_print("op_sort::apply(), dim = 1, generic");
      
      out.copy_size(X);
      
      const uword n_rows = out.n_rows;
      const uword n_cols = out.n_cols;
      
      podarray<eT> tmp_array(n_cols);
      
      for(uword row=0; row < n_rows; ++row)
        {
        op_sort::copy_row(tmp_array.memptr(), X, row);
        
        op_sort::direct_sort( tmp_array.memptr(), n_cols, sort_type );
        
        op_sort::copy_row(out, tmp_array.memptr(), row);
        }
      }
    }
  }
Ejemplo n.º 2
0
inline
void
op_sort::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_sort>& in)
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::elem_type eT;
  
  const unwrap_check<T1>   tmp(in.m, out);
  const Mat<eT>&       X = tmp.M;
  
  const uword sort_type = in.aux_uword_a;
  const uword dim       = in.aux_uword_b;
  
  arma_debug_check( (sort_type > 1),          "sort(): incorrect usage. sort_type must be 0 or 1");
  arma_debug_check( (dim > 1),                "sort(): incorrect usage. dim must be 0 or 1"      );
  arma_debug_check( (X.is_finite() == false), "sort(): given object has non-finite elements"     );
  
  if( (X.n_rows * X.n_cols) <= 1 )
    {
    out = X;
    return;
    }
  
  
  if(dim == 0)  // sort the contents of each column
    {
    arma_extra_debug_print("op_sort::apply(), dim = 0");
    
    out = X;
    
    const uword n_rows = out.n_rows;
    const uword n_cols = out.n_cols;
      
    for(uword col=0; col < n_cols; ++col)
      {
      op_sort::direct_sort( out.colptr(col), n_rows, sort_type );
      }
    }
  else
  if(dim == 1)  // sort the contents of each row
    {
    if(X.n_rows == 1)  // a row vector
      {
      arma_extra_debug_print("op_sort::apply(), dim = 1, vector specific");
      
      out = X;
      op_sort::direct_sort(out.memptr(), out.n_elem, sort_type);
      }
    else  // not a row vector
      {
      arma_extra_debug_print("op_sort::apply(), dim = 1, generic");
      
      out.copy_size(X);
      
      const uword n_rows = out.n_rows;
      const uword n_cols = out.n_cols;
      
      podarray<eT> tmp_array(n_cols);
      
      for(uword row=0; row < n_rows; ++row)
        {
        op_sort::copy_row(tmp_array.memptr(), X, row);
        
        op_sort::direct_sort( tmp_array.memptr(), n_cols, sort_type );
        
        op_sort::copy_row(out, tmp_array.memptr(), row);
        }
      }
    }
  
  }
Ejemplo n.º 3
0
inline
void
op_sort::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_sort>& in)
  {
  arma_extra_debug_sigprint();
  
  typedef typename T1::elem_type eT;
  
  const unwrap<T1>   tmp(in.m);
  const Mat<eT>& X = tmp.M;
  
  const u32 sort_type = in.aux_u32_a;
  const u32 dim       = in.aux_u32_b;
  
  arma_debug_check( (X.is_finite() == false), "sort(): given object has non-finite elements"     );
  arma_debug_check( (sort_type > 1),          "sort(): incorrect usage. sort_type must be 0 or 1");
  arma_debug_check( (dim > 1),                "sort(): incorrect usage. dim must be 0 or 1"      );
  
  
  if(dim == 0)  // column-wise
    {
    arma_extra_debug_print("op_sort::apply(), dim = 0");
    
    out = X;
    
    for(u32 col=0; col<out.n_cols; ++col)
      {
      op_sort::direct_sort( out.colptr(col), out.n_rows, sort_type );
      }
    }
  else
  if(dim == 1)  // row-wise
    {
    if(X.n_rows != 1)  // not a row vector
      {
      arma_extra_debug_print("op_sort::apply(), dim = 1, generic");
      
      //out.set_size(X.n_rows, X.n_cols);
      out.copy_size(X);
      
      podarray<eT> tmp_array(X.n_cols);
      
      for(u32 row=0; row<out.n_rows; ++row)
        {
        
        for(u32 col=0; col<out.n_cols; ++col)
          {
          tmp_array[col] = X.at(row,col);
          }
        
        op_sort::direct_sort( tmp_array.memptr(), out.n_cols, sort_type );
        
        for(u32 col=0; col<out.n_cols; ++col)
          {
          out.at(row,col) = tmp_array[col];
          }
        
        }
      }
    else  // a row vector
      {
      arma_extra_debug_print("op_sort::apply(), dim = 1, vector specific");
      
      out = X;
      op_sort::direct_sort(out.memptr(), out.n_elem, sort_type);
      }
    }
  
  }